package com.siwei.apply.handler;

import com.siwei.apply.utils.JsonUtil;
import org.apache.ibatis.type.BaseTypeHandler;
import org.apache.ibatis.type.JdbcType;
import org.apache.ibatis.type.MappedJdbcTypes;
import org.apache.ibatis.type.MappedTypes;
import org.postgresql.util.PGobject;

import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Map;

@MappedTypes(Map.class)
@MappedJdbcTypes(JdbcType.OTHER)
public class JsonbTypeHandler extends BaseTypeHandler<Map<String, Object>> {

    @Override
    public void setNonNullParameter(PreparedStatement ps, int i, Map<String, Object> parameter, JdbcType jdbcType) throws SQLException {
        PGobject pgObject = new PGobject();
        pgObject.setType("jsonb");
        pgObject.setValue(JsonUtil.toJson(parameter)); // 使用 JsonUtil 转 JSON 字符串
        ps.setObject(i, pgObject);
    }

    @Override
    public Map<String, Object> getNullableResult(ResultSet rs, String columnName) throws SQLException {
        String json = rs.getString(columnName);
        return json == null ? null : JsonUtil.fromJson(json); // 使用 JsonUtil 解析 JSON
    }

    @Override
    public Map<String, Object> getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
        String json = rs.getString(columnIndex);
        return json == null ? null : JsonUtil.fromJson(json);
    }

    @Override
    public Map<String, Object> getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
        String json = cs.getString(columnIndex);
        return json == null ? null : JsonUtil.fromJson(json);
    }
}